Shear-induced organization of forces in dense suspensions: signatures of discontinuous shear thickening
Dense suspensions can exhibit an abrupt change in their viscosity in response to increasing shear rate. The origin of this discontinuous shear thickening (DST) has been ascribed to the transformation of lubricated contacts to frictional, particle-on-particle contacts. Recent research on the flowing...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2017-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://doi.org/10.1051/epjconf/201714009045 |
| _version_ | 1819134113743896576 |
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| author | Sarkar Sumantra Shatoff Elan Ramola Kabir Mari Romain Morris Jeffrey Chakraborty Bulbul |
| author_facet | Sarkar Sumantra Shatoff Elan Ramola Kabir Mari Romain Morris Jeffrey Chakraborty Bulbul |
| author_sort | Sarkar Sumantra |
| collection | DOAJ |
| description | Dense suspensions can exhibit an abrupt change in their viscosity in response to increasing shear rate. The origin of this discontinuous shear thickening (DST) has been ascribed to the transformation of lubricated contacts to frictional, particle-on-particle contacts. Recent research on the flowing and jamming behavior of dense suspensions has explored the intersection of ideas from granular physics and Stokesian fluid dynamics to better understand this transition from lubricated to frictional rheology. DST is reminiscent of classical phase transitions, and a key question is how interactions between the microscopic constituents give rise to a macroscopic transition. In this paper, we extend a formalism that has proven to be successful in understanding shear jamming of dry grains to dense suspensions. Quantitative analysis of the collective evolution of the contactforce network accompanying the DST transition demonstrates clear changes in the distribution of microscopic variables, and leads to the identification of an “order parameter” characterizing DST. |
| first_indexed | 2024-12-22T09:58:02Z |
| format | Article |
| id | doaj.art-77f148c6774e41caa56e1086a978c3e0 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-22T09:58:02Z |
| publishDate | 2017-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-77f148c6774e41caa56e1086a978c3e02022-12-21T18:30:14ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011400904510.1051/epjconf/201714009045epjconf162394Shear-induced organization of forces in dense suspensions: signatures of discontinuous shear thickeningSarkar Sumantra0Shatoff Elan1Ramola Kabir2Mari Romain3Morris JeffreyChakraborty Bulbul4Physics of Living Systems, MITMartin Fisher School of Physics, Brandeis UniversityMartin Fisher School of Physics, Brandeis UniversityDepartment of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of CambridgeMartin Fisher School of Physics, Brandeis UniversityDense suspensions can exhibit an abrupt change in their viscosity in response to increasing shear rate. The origin of this discontinuous shear thickening (DST) has been ascribed to the transformation of lubricated contacts to frictional, particle-on-particle contacts. Recent research on the flowing and jamming behavior of dense suspensions has explored the intersection of ideas from granular physics and Stokesian fluid dynamics to better understand this transition from lubricated to frictional rheology. DST is reminiscent of classical phase transitions, and a key question is how interactions between the microscopic constituents give rise to a macroscopic transition. In this paper, we extend a formalism that has proven to be successful in understanding shear jamming of dry grains to dense suspensions. Quantitative analysis of the collective evolution of the contactforce network accompanying the DST transition demonstrates clear changes in the distribution of microscopic variables, and leads to the identification of an “order parameter” characterizing DST.https://doi.org/10.1051/epjconf/201714009045 |
| spellingShingle | Sarkar Sumantra Shatoff Elan Ramola Kabir Mari Romain Morris Jeffrey Chakraborty Bulbul Shear-induced organization of forces in dense suspensions: signatures of discontinuous shear thickening EPJ Web of Conferences |
| title | Shear-induced organization of forces in dense suspensions: signatures of discontinuous shear thickening |
| title_full | Shear-induced organization of forces in dense suspensions: signatures of discontinuous shear thickening |
| title_fullStr | Shear-induced organization of forces in dense suspensions: signatures of discontinuous shear thickening |
| title_full_unstemmed | Shear-induced organization of forces in dense suspensions: signatures of discontinuous shear thickening |
| title_short | Shear-induced organization of forces in dense suspensions: signatures of discontinuous shear thickening |
| title_sort | shear induced organization of forces in dense suspensions signatures of discontinuous shear thickening |
| url | https://doi.org/10.1051/epjconf/201714009045 |
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